syntax error: enum and typedef struct

[sagitt13]

Hi,

I'm trying to compile a project using gcc and I got the following error message:

saw.h:52: error: syntax error before "conn_state"
saw.h:52: warning: no semicolon at end of struct or union
saw.h:58: error: syntax error before "}" token
saw.h:58: warning: type defaults to ˜int" in declaration of "state_t"
saw.h:58: warning: data definition has no type or storage class
saw.h:60: error: syntax error before "s"
saw.h:60: warning: type defaults to "int" in declaration of "s"
saw.h:60: warning: data definition has no type or storage class

Here's the code the errors are referring to:

enum conn_state {
	CLOSED=0,
	SYN_SENT,
	SYN_RCVD,
	ESTABLISHED,
	FIN_SENT,
	FIN_RCVD
};

typedef struct {
	conn_state state;                               //line 52
	uint8_t current_seqnum;
	struct sockaddr_in other;
	socklen_t otherLen;
	int duplicate;
	/* What should go here? */
} state_t;

extern state_t s;

I tried checking online and in my books and I think I'm using the right syntax. Does anyone know what I'm doing wrong? Thanks!

[vart]

use

typedef enum  {
	CLOSED=0,
	SYN_SENT,
	SYN_RCVD,
	ESTABLISHED,
	FIN_SENT,
	FIN_RCVD
}conn_state;

then You can use conn_state as a type;

or just use

enum conn_state state;

in your structure.
Currently you try to define a variable state with the type that does not exist.

[dwks]

Your current code

enum anenum {};

requires you to use the enum keyword when you're declaring an instance of it:

enum anenum theinstanceofanenum;

With a typedef

typedef enum {} anenum;

you have to leave out the enum keyword:

anenum theinstanceofanenum;

For both (with or without the "enum"), use this:

typedef enum anenum {} anenum_t;

enum anenum x;
anenum_t y;